Hocus Pocus Pow Wow

This is the only W7 cartoon to use Warner's version of the falling object whistle (which is used around the end of the cartoon, after Merlin lights up a dynamite to Lo the inidian and blows up, blasting him up until he falls on the ground).

And it's ironically, the only Merlin cartoon to use Hanna-Barbera's falling object whistle (used when the Lo spin falls off a cliff). The other Merlin cartoons used instead a different Hanna-Barbera falling object whistle.